Home / 79,568,990.82-109,746,018.11-70,260,137.51

Finding the Fourth Proportional to 79,568,990.82, 109,746,018.11 and 70,260,137.51

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Solution

The fourth proportional to 79,568,990.82, 109,746,018.11 and 70,260,137.51 is: 96,906,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,568,990.82 : 109,746,018.11 = 70,260,137.51 : x
  2. Step 2: Convert to fraction form
    79,568,990.82/109,746,018.11 = 70,260,137.51/x
  3. Step 3: Cross multiply
    79,568,990.82x = 109,746,018.11 × 70,260,137.51
  4. Step 4: Simplify right side
    79,568,990.82x = 7,710,770,323,210,470
  5. Step 5: Solve for x
    x = 7,710,770,323,210,470/79,568,990.82
  6. Step 6: Final answer
    x = 96,906,725.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.